Examination of the urine; a manual for students and practitioners . Fig. 10.—Einhorns saccharometer. Fig. ii.—Einhorns saccharometerwith stop-cock. at the level of the fluid. If the second tube also showsa small amount of gas, this is deducted from the reading ofthe first tube. The results are only approximate. Lohnsteins Method.—A valuable fermentation sacchar-ometer has been described by Lohnstein, which directlyindicates the percentage of sugar from o to 10 per cent,without requiring dilution. According to a number ofobservers, this instrument is very accurate, although Riva- n6 EXAMINATION


Examination of the urine; a manual for students and practitioners . Fig. 10.—Einhorns saccharometer. Fig. ii.—Einhorns saccharometerwith stop-cock. at the level of the fluid. If the second tube also showsa small amount of gas, this is deducted from the reading ofthe first tube. The results are only approximate. Lohnsteins Method.—A valuable fermentation sacchar-ometer has been described by Lohnstein, which directlyindicates the percentage of sugar from o to 10 per cent,without requiring dilution. According to a number ofobservers, this instrument is very accurate, although Riva- n6 EXAMINATION OF THE URINE rdpo, of Turin, found that comparative tests with polar-imetry, Fehlings method, and Lohnsteins apparatusshowed marked errors, which increased especially withthe amount of albumin in the urine and the degree ofdilution of the Lohnsteins saccharometer is intended to rectify theerrors which are apt to enter in an estimation with Ein-horns apparatus, because in thelatter no allowance is made for tem-perature, pressure, etc., as shouldb


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